This is a color PDF document offered free of charge. To begin, I like maps and place names to help spur my own creativity in adventures and stories. "Aihrde" presumably relates to a fantasy universe given more depth and detail in a handbook. This then would be a supplement to that system. Several other maps of Aihrde are also offered for free. In my other reviews I stated that I was disappointed with maps of Aihrde. Sadly, this map of "human migration" from its title was very unhelpful. It's only use, in my opinion, would be for someone using the Aihrde system. It is provided free of charge, and that fact alone usually rates the product "Two Stars." Without offense to the author or design team, I can only in good faith give it "One Star"/Bad. I cannot suggest it be downloaded.